Systems Engineering and Electronics

Previous Articles     Next Articles

Priority probability deceleration deadline-aware TCP

Jin Ye1, 4, Jing Lin2, and Jiawei Huang3,*   

  1. 1. School of Computer and Electronic Information, Guangxi University, Nanning 530004, China;
    2. School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China;
    3. School of Information Science and Engineering, Central South University, Changsha 410083, China;
    4. Guangxi Experiment Center of Information, Guilin 541004, China
  • Online:2015-06-25 Published:2010-01-03


In modern data centers, because of the deadlineagnostic congestion control in transmission control protocol (TCP), many deadline-sensitive flows can not finish before their deadlines. Therefore, providing a higher deadline meeting ratio becomes a critical challenge in the typical online data intensive (OLDI) applications of data center networks (DCNs). However, a problem named as priority synchronization is found in this paper, which decreases the deadline meeting ratio badly. To solve this problem, we propose a priority probability deceleration (P2D) deadline-aware TCP. By using the novel probabilistic deceleration, P2D prevents the priority synchronization problem. Simulation results show that P2D increases the deadline meeting ratio by 20% compared with D2TCP.